ATA548881A - CIRCUIT ARRANGEMENT FOR DETECTING THE POLARITY OF THE LOAD CURRENT IN A DC CURRENT INVERTER - Google Patents
CIRCUIT ARRANGEMENT FOR DETECTING THE POLARITY OF THE LOAD CURRENT IN A DC CURRENT INVERTERInfo
- Publication number
- ATA548881A ATA548881A AT0548881A AT548881A ATA548881A AT A548881 A ATA548881 A AT A548881A AT 0548881 A AT0548881 A AT 0548881A AT 548881 A AT548881 A AT 548881A AT A548881 A ATA548881 A AT A548881A
- Authority
- AT
- Austria
- Prior art keywords
- polarity
- load current
- current
- bypass
- bridge arms
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/03—Arrangements for regulating or controlling the speed or torque of electric DC motors for controlling the direction of rotation of DC motors
- H02P7/04—Arrangements for regulating or controlling the speed or torque of electric DC motors for controlling the direction of rotation of DC motors by means of a H-bridge circuit
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Measurement Of Current Or Voltage (AREA)
- Inverter Devices (AREA)
- Control Of Stepping Motors (AREA)
- Amplifiers (AREA)
Abstract
A circuit arrangement for determining the polarity and the magnitude of the load current in a reversible d-c controller includes a bridge circuit comprising two pairs of bridge arms connected to opposite terminals of the voltage supply bus. Each pair of bridge arms connected to the same side of the supply bus form a bypass circuit connected across the load. Two diagonally disposed bridge arms each contain a primary winding of a current transformer having two primary windings connected in opposite winding phase. Load current normally flows through either pair of diagonally disposed bridge arms, but during pauses in the load drive, circulates in one of the two bypass circuits. Electronic switches in each of the bridge arms are controlled so that the load current circulates in successive bypass periods in an alternating pattern in the two bypass circuits. When current flows in a bypass circuit, a phase sensitive voltage is induced in the single secondary of the current transformer. Signals from the electronic switches in one of the bypass circuits are fed via digital logic circuitry to a further electronic switch which causes an operational amplifier to invert pulses from that bypass circuit alone. A pulse train having a polarity corresponding to the polarity of the load current is thereby obtained. In a further embodiment, a sample-and-hold stage for determining the magnitude and polarity of the load current is provided.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0548881A AT374638B (en) | 1981-12-21 | 1981-12-21 | CIRCUIT ARRANGEMENT FOR DETECTING THE POLARITY OF THE LOAD CURRENT IN A DC CURRENT INVERTER |
EP82111267A EP0082392B1 (en) | 1981-12-21 | 1982-12-06 | Circuit arrangement for the registration of the charge current polarity of a reversible dc chopper |
DE8282111267T DE3263937D1 (en) | 1981-12-21 | 1982-12-06 | Circuit arrangement for the registration of the charge current polarity of a reversible dc chopper |
AT82111267T ATE13613T1 (en) | 1981-12-21 | 1982-12-06 | CIRCUIT ARRANGEMENT FOR DETECTING THE POLARITY OF THE LOAD CURRENT IN A DC INVERTER. |
US06/449,757 US4494181A (en) | 1981-12-21 | 1982-12-14 | Circuit arrangement for determining the polarity and magnitude of the load current in a reversible d-c controller or chopper |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0548881A AT374638B (en) | 1981-12-21 | 1981-12-21 | CIRCUIT ARRANGEMENT FOR DETECTING THE POLARITY OF THE LOAD CURRENT IN A DC CURRENT INVERTER |
Publications (2)
Publication Number | Publication Date |
---|---|
ATA548881A true ATA548881A (en) | 1983-09-15 |
AT374638B AT374638B (en) | 1984-05-10 |
Family
ID=3576362
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT0548881A AT374638B (en) | 1981-12-21 | 1981-12-21 | CIRCUIT ARRANGEMENT FOR DETECTING THE POLARITY OF THE LOAD CURRENT IN A DC CURRENT INVERTER |
AT82111267T ATE13613T1 (en) | 1981-12-21 | 1982-12-06 | CIRCUIT ARRANGEMENT FOR DETECTING THE POLARITY OF THE LOAD CURRENT IN A DC INVERTER. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT82111267T ATE13613T1 (en) | 1981-12-21 | 1982-12-06 | CIRCUIT ARRANGEMENT FOR DETECTING THE POLARITY OF THE LOAD CURRENT IN A DC INVERTER. |
Country Status (4)
Country | Link |
---|---|
US (1) | US4494181A (en) |
EP (1) | EP0082392B1 (en) |
AT (2) | AT374638B (en) |
DE (1) | DE3263937D1 (en) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4562386A (en) * | 1984-01-26 | 1985-12-31 | Performance Controls Company | Current sense demodulator |
EP0185238A1 (en) * | 1984-12-19 | 1986-06-25 | BBC Brown Boveri AG | Driving device for a switch |
US4761578A (en) * | 1987-02-27 | 1988-08-02 | The Superior Electric Company | Method and means for operating brushless DC motor with reversible DC power |
US4816726A (en) * | 1987-09-14 | 1989-03-28 | United Technologies Corporation | Method of and arrangement for controlling and h-bridge electric motor |
US4879641A (en) * | 1987-11-02 | 1989-11-07 | Sgs-Thomson Microelectronics S.R.L. | Analog multiplex for sensing the magnitude and sense of the current through a h-bridge stage utilizing a single sensing resistance |
US4985666A (en) * | 1988-08-30 | 1991-01-15 | Sony Corporation | Safety device for video cassette recorder |
JPH02188187A (en) * | 1989-01-11 | 1990-07-24 | Jidosha Denki Kogyo Co Ltd | Motor driver |
US5032774B1 (en) * | 1989-05-09 | 1996-04-23 | United Technologies Automotive | Circuit sensing circuit for use with a current controlling device in a power delivery circuit |
US5210475B1 (en) * | 1989-05-09 | 1996-04-23 | United Technologies Automotive | Circuit sensing circuit for use with a current controlling device in a power delivery circuit |
ES2136241T3 (en) * | 1989-05-09 | 1999-11-16 | Lear Automotive Dearborn Inc | ENERGY SUPPLY CIRCUIT WITH CURRENT DETECTOR. |
DE3928160A1 (en) * | 1989-08-25 | 1991-02-28 | Vdo Schindling | METHOD AND CIRCUIT ARRANGEMENT FOR MONITORING ELECTROMOTORIC ACTUATORS |
JP2716105B2 (en) * | 1991-06-24 | 1998-02-18 | 株式会社日立製作所 | Alternating constant current circuit |
US5495155A (en) * | 1991-06-28 | 1996-02-27 | United Technologies Corporation | Device in a power delivery circuit |
US5428522A (en) * | 1992-08-17 | 1995-06-27 | Kaman Electromagnetics Corporation | Four quadrant unipolar pulse width modulated inverter |
US5365422A (en) * | 1993-06-01 | 1994-11-15 | Performance Controls, Inc. | Pulse-width modulated circuit for applying current to a load |
DE4321040A1 (en) * | 1993-06-24 | 1995-01-05 | Deutronic Electronik Gmbh | Method and device for current measurement in bridge circuits |
US5646520A (en) * | 1994-06-28 | 1997-07-08 | National Semiconductor Corporation | Methods and apparatus for sensing currents |
US5681025A (en) * | 1995-01-20 | 1997-10-28 | Kohler Co. | Motor operated butterfly valve with a multi-function seal |
JP3154665B2 (en) * | 1996-08-29 | 2001-04-09 | 三菱電機株式会社 | High-side motor current detection circuit |
JPWO2005029099A1 (en) * | 2003-09-22 | 2007-11-15 | 平河ヒューテック株式会社 | Current measuring device and test device, and coaxial cable and collective cable used therefor |
FR3056039B1 (en) * | 2016-09-14 | 2018-09-28 | Continental Automotive France | METHOD FOR SUPPLYING AN INDUCTIVE LOAD |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD104393A1 (en) * | 1973-05-30 | 1974-03-05 | ||
DE2655077C3 (en) * | 1976-12-04 | 1987-10-22 | Indramat Gesellschaft für Industrie-Rationalisierung und Automatisierung mbH, 8770 Lohr | Pulse width modulated four-quadrant DC/DC converter |
DE2818800A1 (en) * | 1978-04-28 | 1979-11-08 | Bbc Brown Boveri & Cie | Controller for small commutator motor - incorporates several series chokes to limit fault current levels to safe value |
DE2827358C2 (en) * | 1978-06-22 | 1983-01-13 | Brown, Boveri & Cie Ag, 6800 Mannheim | Reverse logic circuit for a control device for a circuit-free double converter |
DE2930920A1 (en) * | 1979-07-30 | 1981-02-05 | Siemens Ag | METHOD FOR CONTROLLING THE PULSE WIDTH OF A DC CONTROLLER AND CIRCUIT ARRANGEMENT FOR IMPLEMENTING THE METHOD |
US4301496A (en) * | 1979-09-19 | 1981-11-17 | International Telephone And Telegraph Corporation | Use of an inductor within a full bridge d.c.-d.c. power converter |
-
1981
- 1981-12-21 AT AT0548881A patent/AT374638B/en not_active IP Right Cessation
-
1982
- 1982-12-06 AT AT82111267T patent/ATE13613T1/en not_active IP Right Cessation
- 1982-12-06 DE DE8282111267T patent/DE3263937D1/en not_active Expired
- 1982-12-06 EP EP82111267A patent/EP0082392B1/en not_active Expired
- 1982-12-14 US US06/449,757 patent/US4494181A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
AT374638B (en) | 1984-05-10 |
EP0082392B1 (en) | 1985-05-29 |
ATE13613T1 (en) | 1985-06-15 |
US4494181A (en) | 1985-01-15 |
DE3263937D1 (en) | 1985-07-04 |
EP0082392A1 (en) | 1983-06-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ELJ | Ceased due to non-payment of the annual fee |